Granada Hills decathlon

Robert Durell / Los Angeles Times

Geoffrey Poon of Granada Hills Charter High School with his father, Gary, after the team took sixth place in the competition. Team members fancied themselves as brave Spartans who defended Greece from marauding invaders.

Geoffrey Poon of Granada Hills Charter High School with his father, Gary, after the team took sixth place in the competition. Team members fancied themselves as brave Spartans who defended Greece from marauding invaders. (Robert Durell / Los Angeles Times)

Geoffrey Poon of Granada Hills Charter High School with his father, Gary, after the team took sixth place in the competition. Team members fancied themselves as brave Spartans who defended Greece from marauding invaders.